CN105221479B - Centrifugal fan impeller, centrifugal fan and air conditioner - Google Patents
Centrifugal fan impeller, centrifugal fan and air conditioner Download PDFInfo
- Publication number
- CN105221479B CN105221479B CN201510670790.9A CN201510670790A CN105221479B CN 105221479 B CN105221479 B CN 105221479B CN 201510670790 A CN201510670790 A CN 201510670790A CN 105221479 B CN105221479 B CN 105221479B
- Authority
- CN
- China
- Prior art keywords
- centrifugal fan
- impeller
- blade
- centrifugal blower
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229920003023 plastic Polymers 0.000 claims abstract description 19
- 239000004033 plastic Substances 0.000 claims abstract description 19
- 238000004378 air conditioning Methods 0.000 claims abstract description 17
- 230000003068 static effect Effects 0.000 abstract description 16
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 4
- 238000005119 centrifugation Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010219 correlation analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
- F04D17/162—Double suction pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2240/00—Components
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/303—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the leading edge of a rotor blade
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a centrifugal fan impeller, a centrifugal fan and an air conditioner, belongs to the field of air conditioning devices, and aims to solve the problems of poor strength and the like of the existing products. The centrifugal fan impeller comprises a fixed edge and a rear disc for penetrating through a rotating shaft, wherein a plurality of blades are arranged between the fixed edge and the rear disc, and the first ends of the blades close to the rear disc are wider than the second ends close to the fixed edge. The centrifugal fan comprises a volute, and the impeller is arranged in the volute. The air conditioner comprises the centrifugal fan. The centrifugal fan impeller increases the bearing capacity of the blades and the overall structural strength of the impeller, applies more work to airflow and increases the static pressure rise of the fan; the flow loss of the flow channel and the boundary flow separation are reduced, the performance of the centrifugal fan is improved, and the strength is high. The centrifugal fan and the air conditioner expand the application range of the plastic centrifugal fan, and the plastic centrifugal fan is popularized and applied to large-air-volume and high-static-pressure air conditioning units.
Description
Technical field
The present invention relates to air-conditioning device field more particularly to a kind of centrifugal blower fan blade wheel, it is provided with the centrifugal blower fan blade wheel
Centrifugal blower and be provided with the air-conditioning of the centrifugal blower.
Background technology
Forward multiple wing type centrifugal blower is the critical component in air-conditioning refrigeration system.In order to which working effect is more preferable, it is desirable that leaf
Wheel relative width is larger, width of blade is small.
When centrifugal blower fan blade wheel is made of plastics, impeller relative width is big, the small this structure of width of blade is by material category
Property, processing and assembling structure limitation, integral strength is poor, can be only applied on the air-conditioner set of small air quantity, low static pressure,
Can not be applied to Wind Volume, high static pressure air-conditioner set in.Existing Wind Volume, high static pressure field of air conditioning are made of metal always
Centrifugal blower, production cost is high, high noise, and is difficult to the complicated vane airfoil profile of processing.
Invention content
It is an object of the invention to propose a kind of centrifugation increasing blade bearing capacity and impeller overall construction intensity
Draught fan impeller.
Another object of the present invention is to propose a kind of centrifugal blower of high static pressure.
Another object of the present invention is to propose a kind of air-conditioning using plastic centrifuge wind turbine alternative metals centrifugal blower.
For this purpose, on the one hand, the present invention uses following technical scheme：
A kind of centrifugal blower fan blade wheel, including fixed edge and the hub disk for wearing shaft, the fixed edge and the hub disk
Between be provided with multiple blades, be wider than the second end close to the fixed edge close to the first end of the hub disk on the blade.
In particular, the long side on the blade close to shaft is oblique；The intersection point of the long side and the first end away from
The distance value of shaft is S, and distance value of the intersection point away from shaft of the long side and the second end is L, S ＞ L.
Further, angle β ∈ [3 °, 9 °] between the long side and the axis of shaft.
In particular, angle β=6 ° between the long side and the axis of shaft.
In particular, the blade is in tile, the axis of the blade is parallel with the axis of the shaft.
Further, the radius of curvature of the first end is more than the radius of curvature of the second end.
In particular, the blade is made of plastics.
On the other hand, the present invention uses following technical scheme：
A kind of centrifugal blower, including spiral case are provided with above-mentioned impeller in the spiral case.
In another aspect, the present invention uses following technical scheme：
A kind of air-conditioning, the air-conditioning include above-mentioned centrifugal blower.
Blade one end of centrifugal blower fan blade wheel of the present invention is wider than the other end, increase blade bearing capacity and impeller it is whole
Body structural strength does work to air-flow more, increases fan static pressure liter；Blade is narrow at impeller inlet, forms convergent contour import, subtracts
Small flow passage loss and boundary flow separation, are conducive to the performance for improving centrifugal blower, and intensity is high.
Above-mentioned impeller is provided in the spiral case of centrifugal blower of the present invention, air-conditioning of the present invention includes above-mentioned centrifugal blower, blade
The incline structure of import forms the plastic centrifuge wind turbine of high static pressure, expands the use scope of plastic centrifuge wind turbine, by plastics
Centrifugal blower promotes the use of in Wind Volume, high static pressure air-conditioner set.
Description of the drawings
Fig. 1 is the schematic cross-sectional view for the centrifugal blower fan blade wheel that the preferred embodiment of the present invention one provides；
Fig. 2 is the front view for the centrifugal blower fan blade wheel that the preferred embodiment of the present invention one provides；
Fig. 3 is the half sectional view for the centrifugal blower fan blade wheel that the preferred embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram for the centrifugal blower that the preferred embodiment of the present invention one provides.
In figure label for：
1, impeller；2, spiral case；11, fixed edge；12, hub disk；13, blade；121, axis hole；131, first end；132, second
End；133, long side.
Specific implementation mode
Technical solution to further illustrate the present invention below with reference to the accompanying drawings and specific embodiments.
Preferred embodiment one：
This preferred embodiment discloses a kind of centrifugal blower fan blade wheel.As depicted in figs. 1 and 2, which includes solid
Deckle 11 and hub disk 12 for wearing shaft, are provided with multiple equally distributed blades 13 between fixed edge 11 and hub disk 12；
First end 131 on blade 13 close to hub disk 12 is wider than the second end 132 close to fixed edge 11.Specifically, close on blade 13
The long side 133 of shaft is oblique；Distance value of the intersection point away from shaft of long side 133 and first end 131 is S, long side 133 and second
The distance value of the intersection point away from shaft at end 132 is L, S ＞ L.Blade 13 is made of plastics.Axis hole 121 is set on hub disk 12.
This inclined novel centrifugal fan impeller structure of vane inlet increases impeller integral strength；Match with spiral case
Operation reduces flow passage loss and boundary separation, improves fan static pressure liter, improve overall performance, be conducive to mould
Expect that centrifugal blower alternative metals Wind Volume centrifugal blower is applied in field of air conditioning.
Blade 13 is in tile, and the axis of blade 13 is parallel with the axis of shaft.The radius of curvature of first end 131 is more than the
The radius of curvature at two ends 132.The plastic centrifuge fan impeller structure to existing same size and plastic centrifuge of the present invention with ANSYS
Fan impeller structure carries out static analysis, and the maximum equivalent of the plastic centrifuge blower fan structure of existing same size is 4.07MPa,
The maximum equivalent of plastic centrifuge fan impeller structure of the present invention is 2.28Mpa.That is, plastic centrifuge draught fan impeller knot of the present invention
Structure reduces the equivalent stress of impeller, increases blade wheel structure intensity, contributes to the use scope for expanding plastic centrifuge wind turbine.Its
Its correlation analysis data is see table 1.
1. plastic centrifuge fan impeller structure equivalent stress of table compares
The blade of existing centrifugal blower fan blade wheel is wide laminated structure, that is, from impeller inlet on impeller hub disk direction
Incoming air area is invariable.The blade of centrifugal blower fan blade wheel of the present invention is trapezoidal laminated structure, from impeller inlet to
Impeller hub disk direction upper air inlet area makes air-flow intensively be flowed to hub disk, and in master by being gradually reduced greatly, forming contraction structure
It wants flow region to do work, improves static pressure.
The impeller inlet velocity variation coefficient ξ when the sectional area of air intake passage gradually narrows>1.Increase impeller inlet speed
The flow losses in runner can be reduced after degree variation coefficient ξ, prevent air-flow from boundary separation occurs at air inlet turning, improve from
The overall performance of heart wind turbine.
As shown in figure 3, angle β ∈ [3 °, 9 °], preferably angle β=6 ° between long side 133 and the axis of shaft.To from
Heart wind turbine outer diameter D 2=151mm performances are compared, and original wind turbine and centrifugal fan are obtained by ANSYS fluid emulations
Total head is as a result, analysis structure is shown in Table 2.
2. plastic centrifuge fan performance simulation result of table
Preferred embodiment two：
This preferred embodiment discloses a kind of centrifugal blower fan blade wheel, and structure and preferred embodiment one are essentially identical.The centrifugation
Draught fan impeller includes fixed edge and the hub disk for wearing shaft, and multiple equally distributed leaves are provided between fixed edge and hub disk
Piece；It is wider than the second end close to fixed edge close to the first end of hub disk on blade.
The difference is that：The concrete shape of blade is unlimited, can be from impeller inlet to impeller hub disk direction upper air inlet area
From be gradually reduced greatly, make air-flow intensively to hub disk flow and primary flow region acting, achieve the purpose that improve static pressure i.e.
It can.
Preferred embodiment three：
This preferred embodiment discloses a kind of centrifugal blower.As shown in figure 4, the centrifugal blower includes spiral case 2, set in spiral case 2
It is equipped with the impeller 1 as described in preferred embodiment one or two.Centrifugal blower is improved close to this small structure of internal diameter blade at hub disk
Static pressure liter, concentrated part air-flow done work, pressurizeed, reduced the noise of complete machine, reduce cost, can with alternative metals from
Heart wind turbine is applied to high static pressure centrifugal blower field.
Thick lines show centrifugal blower fan blade wheel distribution of exit velocities situation in Fig. 4.Air-flow passes through the larger impeller of width
Acting, speed is symmetrical when flowing out impeller, close to (centre) at hub disk is big, (both ends) are small at impeller inlet.That is, big portion
It is to be radially flowed out again by the blade acting near hub disk from inlet flow near hub disk, can effectively improve static pressure to divide air-flow.
Preferred embodiment four：
This preferred embodiment discloses a kind of air-conditioning.The air-conditioning includes the centrifugal blower as described in preferred embodiment three, complete machine
Performance is high, uses plastic centrifuge wind turbine alternative metals centrifugal blower manufacture Wind Volume, high static pressure air-conditioning.
Note that the technical principle that above are only presently preferred embodiments of the present invention and used.Those skilled in the art can manage
Solution, the present invention is not limited to specific embodiments described here, can carry out various apparent changes for a person skilled in the art
Change, readjust and substitutes without departing from protection scope of the present invention.Therefore, although by above example to the present invention into
It has gone and has been described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept,
Can also include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (4)
1. a kind of centrifugal blower fan blade wheel, including fixed edge (11) and the hub disk (12) for wearing shaft, the fixed edge (11)
It is provided with multiple blades (13) between the hub disk (12), which is characterized in that close to the hub disk on the blade (13)
(12) first end (131) is wider than the second end (132) close to the fixed edge (11)；The fixed edge (11) is provided only on institute
On the outside of the end for stating blade (13)；
Blade (13) is in tile, and the axis of the blade (13) is parallel with the axis of the shaft；The first end (131)
Radius of curvature is more than the radius of curvature of the second end (132)；
It is oblique close to the long side (133) of shaft on the blade (13)；The long side (133) and the first end (131)
Distance value of the intersection point away from shaft be S, the long side (133) and distance value of the intersection point away from shaft of the second end (132) are
L, S ＞ L；The long side (133) angle β ∈ [3 °, 9 °] between the axis of shaft；
The blade (13) is made of plastics.
2. centrifugal blower fan blade wheel according to claim 1, which is characterized in that the axis of the long side (133) and shaft it
Between angle β=6 °.
3. a kind of centrifugal blower, including spiral case (2), which is characterized in that be arranged just like claims 1 or 2 institute in the spiral case (2)
The impeller (1) stated.
4. a kind of air-conditioning, which is characterized in that the air-conditioning includes centrifugal blower as claimed in claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670790.9A CN105221479B (en) | 2015-10-15 | 2015-10-15 | Centrifugal fan impeller, centrifugal fan and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670790.9A CN105221479B (en) | 2015-10-15 | 2015-10-15 | Centrifugal fan impeller, centrifugal fan and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105221479A CN105221479A (en) | 2016-01-06 |
| CN105221479B true CN105221479B (en) | 2018-08-07 |
Family
ID=54990663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510670790.9A Expired - Fee Related CN105221479B (en) | 2015-10-15 | 2015-10-15 | Centrifugal fan impeller, centrifugal fan and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221479B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206071945U (en) * | 2016-08-18 | 2017-04-05 | 中山大洋电机股份有限公司 | A kind of centrifugal wind wheel, using its centrifugal blower and air-conditioner |
| CN109944828B (en) * | 2019-04-01 | 2024-08-16 | 青岛海尔智能技术研发有限公司 | Centrifugal fan and electrical apparatus |
| CN110140521B (en) * | 2019-05-05 | 2024-04-05 | 沙雅钵施然智能农机有限公司 | Cotton picker wind power edulcoration system and cotton picker |
| CN110005636A (en) * | 2019-05-20 | 2019-07-12 | 东莞市麦凯通风设备有限公司 | The blade wheel structure of steady type Wind Volume high pressure blower |
| CN113550930A (en) * | 2021-08-04 | 2021-10-26 | 珠海格力节能环保制冷技术研究中心有限公司 | Centrifugal fan blade, fan and air conditioning system comprising same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018993A (en) * | 1996-07-04 | 1998-01-20 | Matsushita Refrig Co Ltd | Sirocco fan |
| CN2426028Y (en) * | 2000-05-22 | 2001-04-04 | 上海林内有限公司 | Multi-blade fan for cooking fume exhauster |
| CN202811428U (en) * | 2012-09-29 | 2013-03-20 | 陈西安 | Multi-blade centrifugal fan |
| CN104564803A (en) * | 2015-01-16 | 2015-04-29 | 珠海格力电器股份有限公司 | Centrifugal impeller, centrifugal fan assembly and air conditioning unit |
| CN205117804U (en) * | 2015-10-15 | 2016-03-30 | 珠海格力电器股份有限公司 | Centrifugal fan impeller, centrifugal fan and air conditioner |
-
2015
- 2015-10-15 CN CN201510670790.9A patent/CN105221479B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1018993A (en) * | 1996-07-04 | 1998-01-20 | Matsushita Refrig Co Ltd | Sirocco fan |
| CN2426028Y (en) * | 2000-05-22 | 2001-04-04 | 上海林内有限公司 | Multi-blade fan for cooking fume exhauster |
| CN202811428U (en) * | 2012-09-29 | 2013-03-20 | 陈西安 | Multi-blade centrifugal fan |
| CN104564803A (en) * | 2015-01-16 | 2015-04-29 | 珠海格力电器股份有限公司 | Centrifugal impeller, centrifugal fan assembly and air conditioning unit |
| CN205117804U (en) * | 2015-10-15 | 2016-03-30 | 珠海格力电器股份有限公司 | Centrifugal fan impeller, centrifugal fan and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105221479A (en) | 2016-01-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105221479B (en) | Centrifugal fan impeller, centrifugal fan and air conditioner | |
| JP5730649B2 (en) | Impeller and turbomachine having the same | |
| JP5879103B2 (en) | Centrifugal fluid machine | |
| JPS5990797A (en) | Centrifugal compressor and compression method | |
| WO1990009525A1 (en) | Centrifugal fan with variably cambered blades | |
| US20110223029A1 (en) | Extraction fan and rotor | |
| JP6034162B2 (en) | Centrifugal fluid machine | |
| CN109026830B (en) | Centrifugal impeller | |
| CN107061329A (en) | A kind of axial flow blower | |
| US9739287B2 (en) | Fan and motor assembly and method of assembling | |
| CN205117804U (en) | Centrifugal fan impeller, centrifugal fan and air conditioner | |
| CN201851371U (en) | Blowing fan and air blower using same | |
| CN103122872B (en) | Axial flow fan | |
| CN202628612U (en) | Axial flow fan blade, fan and air conditioner outdoor unit | |
| CN108953222B (en) | Centrifugal impeller | |
| CN111120400A (en) | Centrifugal compressor for micro gas turbine | |
| CN103486081A (en) | Axial flow fan blade, fan and air conditioner outdoor unit | |
| CN108005956B (en) | Volute structure for automobile air conditioner | |
| JP6064003B2 (en) | Centrifugal fluid machine | |
| CN113153812A (en) | C-type starting forward-bent multi-wing centrifugal fan impeller and preparation method thereof | |
| CN104613009A (en) | Reversible axial flow fan blade with air blowing grooves | |
| JP6362980B2 (en) | Turbo machine | |
| CN201003510Y (en) | Impeller set | |
| CN110566500A (en) | Impeller of centrifugal ventilator | |
| CN107313977B (en) | Centrifugal fan blade, centrifugal fan and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 |